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Hyperspectral Sparse Unmixing via Joint Robust Spatial Priors and Weighted Total Variation Regularization

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Sparse unmixing, which introduces a large spectral library to transform the problem of mixed-pixel decomposition into the search for an optimal subset of endmembers that best represents the spectral characteristics of an image, has become a prominent ...
Fan Li   +8 more
doaj   +1 more source

Mapping of Coastal Cities Using Optimized Spectral–Spatial Features Based Multi-Scale Superpixel Classification

open access: yesRemote Sensing, 2019
The high interior heterogeneity of land surface covers in high-resolution image of coastal cities makes classification challenging. To meet this challenge, a Multi-Scale Superpixels-based Classification method using Optimized Spectral−Spatial ...
Aizhu Zhang   +8 more
doaj   +1 more source

Image Haze Removal Based on Superpixels and Markov Random Field

open access: yes, 2020
Image haze removal is critical for autonomous driving. However, it is a challenging task for the existing image dehazing algorithms to eliminate the block effect completely and handle objects similar to light (such as snowy objects and white buildings ...
Yibo Tan, Guoyu Wang
core   +1 more source

Superpixel Segmentation: An Evaluation

open access: yes, 2015
In recent years, superpixel algorithms have become a standard tool in computer vision and many approaches have been proposed. However, different evaluation methodologies make direct comparison difficult. We address this shortcoming with a thorough and fair comparison of thirteen state-of-the-art superpixel algorithms.
openaire   +1 more source

Image Segmentation via Clustering Superpixels

open access: yes, 2012
This paper presents a method for image segmentation by clustering superpixels based on histogram dissimilarity. A superpixel is a tiny image fragment which contains the edge or boundary information of sub-regions in the image. Each sub-region consists of
유지성, 김성대, 황성수
core   +1 more source

Double-Branch Multilevel Skip Sparse Graph Attention Network for Hyperspectral Image Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Graph neural networks (GNNs) offer a potent framework for learning and representing data with graph structures. In the context of hyperspectral images (HSIs) classification tasks, GNNs have been successfully employed. Among the diverse variations of GNNs,
Qingyan Wang   +4 more
doaj   +1 more source

Class-specified segmentation with multi-scale superpixels

open access: yes, 2013
Conference Name:11th Asian Conference on Computer Vision, ACCV 2012. Conference Address: Daejeon, Korea, Republic of. Time:November 5, 2012 - November 6, 2012.This paper proposes a class-specified segmentation method, which can not only segment ...
Wu, Yang   +8 more
core   +1 more source

V.: SEEDS: Superpixels extracted via energy-driven sampling

open access: yes, 2020
. Superpixel algorithms aim to over-segment the image by grouping pixels that belong to the same object. Many state-of-the-art superpixel algorithms rely on minimizing objective functions to enforce color homogeneity.
Michael Van Den Bergh   +4 more
core  

SuperPatchMatch : Un algorithme de correspondances robustes de patchs de superpixels

open access: yes, 2018
Les superpixels sont devenus très populaires dans de nombreuses applications de vision par ordinateur. Néanmoins, ils restent sous-exploités du fait de l'irrégularité des décompositions qui diffèrent selon les images. Dans ce travail, nous introduisons d'
GIRAUD, Rémi   +4 more
core   +2 more sources

Mapping Paddy Rice Using Segmentation Techniques and Phenological Metrics Derived from Sentinel-2 Time Series in Senegal

open access: yesGeomatics
Rice field mapping is essential for effective agricultural and water resource management due to high land pressure. This study aims to map paddy rice by combining segmentation techniques and phenological metrics derived from optical time series.
Fama Mbengue   +5 more
doaj   +1 more source

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